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using a previously solved variable in another equation [closed]

asked 2014-08-26 10:39:30 -0500

wzawzdb gravatar image

So I just started using sage but I can't find this (or I don't know how to formulate it).

I have an equation that I solved and I want to use that solved variable in a new equation:

a, b, c, d = var('a b c d') eq1=a+b==d eq2=solve([eq1],b) eq3=c/eq2

but this doesn't work and of course I can do c/b but then it just gives me c/b and I want c/(d-a) as an answer.

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Closed for the following reason duplicate question by tmonteil
close date 2014-08-26 10:45:27.922692

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answered 2014-08-26 10:44:59 -0500

tmonteil gravatar image

updated 2014-08-26 10:45:12 -0500

I propose to close this question as duplicate of http://ask.sagemath.org/question/2393...

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ah yeah ofcourse, thought it didnt go through

wzawzdb gravatar imagewzawzdb ( 2014-08-26 15:00:51 -0500 )edit

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Asked: 2014-08-26 10:39:30 -0500

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Last updated: Aug 26 '14